Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes
Abstract Arctic landscapes are characterised by their numerous ponds and lakes. With increased climate warming and consequent changes in hydrological connectivity, the ecology of many of these waterbodies is expected to change. We sampled 13 ponds and 22 lakes for zooplankton and various limnologica...
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Online Access: | http://dx.doi.org/10.1111/fwb.14181 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.14181 |
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crwiley:10.1111/fwb.14181 2024-06-02T08:02:05+00:00 Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes Blackburn‐Desbiens, Pénélope Grosbois, Guillaume Power, Michael Culp, Joseph Rautio, Milla ArcticNet Natural Sciences and Engineering Research Council of Canada Polar Knowledge Canada W. Garfield Weston Foundation 2023 http://dx.doi.org/10.1111/fwb.14181 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.14181 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Freshwater Biology volume 68, issue 12, page 2131-2150 ISSN 0046-5070 1365-2427 journal-article 2023 crwiley https://doi.org/10.1111/fwb.14181 2024-05-03T11:35:39Z Abstract Arctic landscapes are characterised by their numerous ponds and lakes. With increased climate warming and consequent changes in hydrological connectivity, the ecology of many of these waterbodies is expected to change. We sampled 13 ponds and 22 lakes for zooplankton and various limnological and physical environmental variables in the vicinity of Cambridge Bay, Nunavut (69.1169° N, 105.0597° W), with the aim of testing how well the degree of hydrological connectivity explained patterns in species composition and abundance and contributed to crustacean production. Ponds were hydrologically isolated while the lakes were arranged in four lake chains and ranged from the headwaters to highly inter‐connected lakes receiving water from one to 768 upstream lakes. In all sites combined, 77 zooplankton species were found, including 56 rotifers, six copepods, 11 cladocerans, two fairy shrimp species, a mysid, and a tadpole shrimp. We show that the zooplankton communities differed between hydrologically isolated (ponds) and connected (lakes) systems, with 17 species unique to ponds and 20 to lakes. Furthermore, the communities were more similar within lake chains and hence in lakes closer to each other. In ponds, distances between waterbodies had no impact on community similarity. Zooplankton abundance was higher in lakes (255 ind/L) than in ponds (65 ind/L) due to the higher number of rotifers that accounted for nearly 80% of the zooplankton abundance in lakes. In ponds, rotifers, cladocerans, and copepods were equally abundant. In terms of biomass, cladocerans represented 65% of total biomass in all waterbodies except for a chain of deep lakes that had abundant fish communities. In these lakes, cladoceran abundance and biomass were low and probably limited by fish predation. Zooplankton production was higher in ponds (4.6 mgC m −3 day −1 ) than in lakes (1.7 mgC m −3 day −1 ), and within lakes was lowest in the chain composed of large lakes (1.3 mgC m −3 day −1 ). The high production in ponds was closely linked ... Article in Journal/Newspaper Arctic Cambridge Bay Nunavut Zooplankton Copepods Wiley Online Library Arctic Cambridge Bay ENVELOPE(-105.130,-105.130,69.037,69.037) Nunavut Tadpole ENVELOPE(-65.317,-65.317,-65.933,-65.933) Freshwater Biology 68 12 2131 2150 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Arctic landscapes are characterised by their numerous ponds and lakes. With increased climate warming and consequent changes in hydrological connectivity, the ecology of many of these waterbodies is expected to change. We sampled 13 ponds and 22 lakes for zooplankton and various limnological and physical environmental variables in the vicinity of Cambridge Bay, Nunavut (69.1169° N, 105.0597° W), with the aim of testing how well the degree of hydrological connectivity explained patterns in species composition and abundance and contributed to crustacean production. Ponds were hydrologically isolated while the lakes were arranged in four lake chains and ranged from the headwaters to highly inter‐connected lakes receiving water from one to 768 upstream lakes. In all sites combined, 77 zooplankton species were found, including 56 rotifers, six copepods, 11 cladocerans, two fairy shrimp species, a mysid, and a tadpole shrimp. We show that the zooplankton communities differed between hydrologically isolated (ponds) and connected (lakes) systems, with 17 species unique to ponds and 20 to lakes. Furthermore, the communities were more similar within lake chains and hence in lakes closer to each other. In ponds, distances between waterbodies had no impact on community similarity. Zooplankton abundance was higher in lakes (255 ind/L) than in ponds (65 ind/L) due to the higher number of rotifers that accounted for nearly 80% of the zooplankton abundance in lakes. In ponds, rotifers, cladocerans, and copepods were equally abundant. In terms of biomass, cladocerans represented 65% of total biomass in all waterbodies except for a chain of deep lakes that had abundant fish communities. In these lakes, cladoceran abundance and biomass were low and probably limited by fish predation. Zooplankton production was higher in ponds (4.6 mgC m −3 day −1 ) than in lakes (1.7 mgC m −3 day −1 ), and within lakes was lowest in the chain composed of large lakes (1.3 mgC m −3 day −1 ). The high production in ponds was closely linked ... |
author2 |
ArcticNet Natural Sciences and Engineering Research Council of Canada Polar Knowledge Canada W. Garfield Weston Foundation |
format |
Article in Journal/Newspaper |
author |
Blackburn‐Desbiens, Pénélope Grosbois, Guillaume Power, Michael Culp, Joseph Rautio, Milla |
spellingShingle |
Blackburn‐Desbiens, Pénélope Grosbois, Guillaume Power, Michael Culp, Joseph Rautio, Milla Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
author_facet |
Blackburn‐Desbiens, Pénélope Grosbois, Guillaume Power, Michael Culp, Joseph Rautio, Milla |
author_sort |
Blackburn‐Desbiens, Pénélope |
title |
Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
title_short |
Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
title_full |
Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
title_fullStr |
Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
title_full_unstemmed |
Integrating hydrological connectivity and zooplankton composition in Arctic ponds and lakes |
title_sort |
integrating hydrological connectivity and zooplankton composition in arctic ponds and lakes |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/fwb.14181 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.14181 |
long_lat |
ENVELOPE(-105.130,-105.130,69.037,69.037) ENVELOPE(-65.317,-65.317,-65.933,-65.933) |
geographic |
Arctic Cambridge Bay Nunavut Tadpole |
geographic_facet |
Arctic Cambridge Bay Nunavut Tadpole |
genre |
Arctic Cambridge Bay Nunavut Zooplankton Copepods |
genre_facet |
Arctic Cambridge Bay Nunavut Zooplankton Copepods |
op_source |
Freshwater Biology volume 68, issue 12, page 2131-2150 ISSN 0046-5070 1365-2427 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/fwb.14181 |
container_title |
Freshwater Biology |
container_volume |
68 |
container_issue |
12 |
container_start_page |
2131 |
op_container_end_page |
2150 |
_version_ |
1800746582166994944 |